Browsing Факультет математики та інформатики by Author "Cherevko, Ihor"

Now showing items 1-9 of 9

    • Algorithms for studying the stability of linear systems with delay 

      Cherevko, Ihor; Tuzyk, Iryna (12th International Conference on Advanced Computer Information Technologies, 2022-09-26)
      In this paper, an algorithm for researching the stability of linear systems using a computer is proposed. The stability of systems with delay is reduced to finding the limit conditions for the negatives of the real parts ...

    • Approximation of a solution of boundary value problems for delay integro-differential equations 

      Cherevko, Ihor; A. Dorosh; I. Haiuk; Cherevko, Igor; Піддубна, Лариса; Piddubna, Larisa (Сучасні проблеми прикладної математики та комп’ютерних наук. Збірник наукових праць, 2021-08)
      In the present note we study an approximate method of solving boundary value problems for delay integro-differential equations based on approximation of the solution by cubic splines with defect two.

    • Approximation of systems with delay their stability 

      Cherevko, Ihor; Tuzyk, Iryna (Masaryk University, Brno, Czech Republic, 2022-07-15)
      In this paper, the schemes of approximation of linear systems with delays by special systems of ordinary differential equations are considered and the connections between their solutions are investigated. This allowed ...

    • Approximation schemes for differential functional equations and algorithms their applications 

      Cherevko, Ihor; Tuzyk, Iryna; Ilika, Svitlana; Pertsov, Andrii (Vasyl Stefanyk Precarpathian National University, 2022-05-15)
      Using the approximate finding algorithms for non-asymptotic roots of quasi-polynomials, a way for construct ing the coefficient areas of stability for linear differential equations with delay and finding the set of delay ...

    • Approximation schemes for differential functional equations and their applications 

      Cherevko, Ihor (Чернівецький національний університет, 2022-09-24)
      The obtained algorithms for finding non-asymptotic quasipolynomial roots and constructing regions of stability of linear delay differential equations can be used to study applied problems of optimal control, modeling of ...

    • HOW TO EMPOWER ONLINE TEACHING: 12 PRINCIPLES FOR HIGHER AND POSTGRADUATE EDUCATION 

      Cherevko, Ihor; Byrka, Marian; Yakubovska, Nataliia; Shorobura, Inna; Kurish, Natalya (Інститут цифровізації освіти НАПН України, 2022-10-26)
      The global pandemic COVID-19, which began in 2020, has brought about new challenges to Ukraine’s higher and postgraduate education institutions. Despite the previous experience of providing online education courses, one ...

    • Modeling of different scenarios for the spreadof COVID-19 by using the cellular automata 

      Kosovych, Ihor; Cherevko, Ihor; Vyklyuk, Yaroslav; Nevinskyi, Denys (IEEE, 2022-09-26)
      n this research, we used the method of mobile cellular automata to study the dynamics of COVID-19. A number of simulation scenarios that take into account different quarantine restrictions are considered and compared. The ...

    • On the approximation of linear systems with delay and their stability 

      Piddubna, Larisa; Tuzyk, Iryna; Cherevko, Ihor (The 28th Conference on Applied and Industrial Mathematics 17th(18th September),- Book of Abstract., 2021-09-17)
      In the present paper, we consider applications of the approximation schemes for differential-difference equations to approximate finding nonasymptotic roots of quasipolynomials and analysis of stability for solutions of ...

    • ON THE APPROXIMATION OF SYSTEMS WITH DELAY AND THEIR STABILITY 

      Ilika, Svitlana; Cherevko, Ihor; Piddubna, Larysa; Matwiy, Oleksandr (Матеріали міжнародної наукової конференції «V міжнародна конференція, присвячена 145 річниці від дня народження Ганса Гана», 2024-09)